Eureka Apex The Apex 2 is a lightweight 2 person tent with 1 door and great ventilation. Its hybrid style (½ double wall and ½ single wall) create a light yet functional design.walls are waterproof ,The portion of the tent covered by the fly is no-see-um mesh for great ventilation and stargazing opportunities. The sturdy shock-corded fiberglass frame is durable and packs down to 18.5″. Small bat-wing semi vestibules cover the mesh vents in the doors for great ventilation even in rain and provide limited gear protection. Each door is equipped with a waterproof storm/privacy flap.